Distributor head for stokers



Nov. 1, 1938. H. P. ANDERSON 2,135,249

DISTRIBUTOR HEAD FOR STOKERS Original Filed March 28, 1953 2Sheets-Sheet l IN VEN TOR. Howard j? flnde/zson, decease Bernadinefirm/arson, fxecu/rzz.

ATTORNEYS.

NOV. 1,1938. H, p, ANDERSON 7 2,135,249

' DISTRIBUTOR HEAD FOR STOKERS Original Filed larch 28. 1933 '2Sheets-Sheet 2 INVEN TOR. 3 Howe/"cf B fina e/son, decease fi J Bernm/mefind arson, Frau/flux.

AT ORNEYS.

Patented Nov. 1, 1938 UNITED STATES PATENT OFFICE- DISTRIBUTOR HEAD FORSTOKERS Delaware Original application March 28, 1933, Serial No.

Divided and this application April 1'7, 1937, Serial No. 137,470

10 Claims.

This invention relates generally to stokers and more particularly tostokers arranged to deliver fuel to the firing opening of a furnace andhaving a distributor head for projecting fuel over the fire in thefurnace firebox by a blast of fluid under pressure. a

The principal object of the invention is to provide a novel form ofdistributor head particularly adaptable to the type of stoker describedand a novel form of fuel feed casing arranged to accommodate thedistributor head.

Another object of the invention is to provide a novel stokerconstruction wherein the pressure fluid distributor head is insert-abletransversely through a side wall of the fuel feed casing and is mountedtherein in a manner to be rotatable about its transverse axis and to beadjustable to any one of a number of positions.

With the above and other objects in view, the invention resides in theconstruction of the individual elements and their relation one withanother as will be apparent from the following description when read inconnection with the accompanylng drawings, wherein,

Fig. l is a view in vertical longitudinal section of a portion of alocomotive with the stoker shown in operative position, parts of thestoker being in. elevation and parts broken away; 7

Fig. 2 is a View taken on the line 2-2 of Fig. 1;

Fig. 3 is a fragmentary plan view of that portion of the stoker mountedon the firebox back- Wall;

Fig, 4 is a view in elevation of the stoker taken from within thefirebox, with a portion broken away and a portion shown in section;

Fig. 5 is a sectional view taken on the line 5-5 of Fig. 2;

Fig. 6 is a sectional view taken on the line t% of Fig. 5; and

Fig. 7 is a sectional View taken on the line 'I--1 of Fig. 5.

In the drawings, the locomotive is indicated generally by the numeralIll and includes the main frame ll, the cab I2 and cab deck I3. At Hi,there is shown the backhead of the firebox i5 constituting a rear waterleg of the locomotive boiler. A portion of the firebox grate is shown atit. The backhead I4 has an opening I! therethrough arranged to form botha hand firing opening and a stoker firing opening.

A stoker for transferring fuel from a tender, a portion of which isshown at I8, t the firing opening I1 is indicated as a whole by thenumeral I9. The stoker I9 includes a riser or fuel feed casing 20mounted within the. cab I2 on the backhead I4 of the firebox I in amanner'to surround the conventional firing opening H. The

casing 28 may be supported from the backhead It at its lower end by thebracket 2| and at its upper end or mouth portion 22 by the bolts 23passing through the slots 24 in the lateral flange 25. The flange orframe 25 defines the discharge opening of the casing 26 and embraces thefiring opening I'I.

From the firing opening H, the riser casing 2t slopes rearwardly anddownwardly to a point below the cab deck I3. There its lower open endreceives and is flexibly connected with the front end of a conduitsection 26 leading from a source of fuel supply on the tender I8. Ascrew conveyor Zl, terminating at its forward end adjacent the lower endofthe casing 20 conveys fuel forwardly from the tender I8 and forces itthrough the casing 29 to the firing opening. The screw conveyor 27 maybe driven from its rearward end or intermediate its ends in any mannerwell known in the art. For purpose of illustration a driving engine 28is shown mounted on the locomotive frame I I and a drive shaft 29extends rearwardly therefrom and is operatively connected with the'screwconveyor through suitable gearing (not shown). V

' A fuel distributor plate 30 is secured to the fiange 25 adjacent thelower end of the mouth portion 22 of the casing 29 in any desired manherthat will. permit of its ready removal. The plate 38 extends forwardlythrough the firing opening I I into the firebox I5. Fuel is projectedacross the plate 3b by pressure fluid issuing from a distributor head 3|located at the rear of the plate. A plurality of ribs 32 are provided onthe upper surface of the plate 30 and are arranged to direct theprojected fuel to all parts of the firebox.

A pair of wing 33 and 34 curve outwardly and upwardly from the sides ofthe rearward portion of the distributor plate 30 and are securelyfastened to the flange 25 through their respective flanges 35 and 36 bysuitable means, as by bolts 31. The wings 33 and 34 in effect formcontinuations of the walls of the mouth portion 22 of the casing 20 andextend into the firing opening thereby preventing coal from spillingover the sides of the rearward portion of the distributo plate.

The casing 20 is provided in its top, immediately rearward of the flange25, with an opening 38 of sumcient size to permit entrance to be gainedto the firebox for the purpose of inspecting the grates, and otherpartsof the firebox and for eftion of a hook or rake for raking or cleaningthe fire. A dome-shaped door 39 forms a continuation of the rear andside walls of the casing and ,a closure for theopening 38 and is mountedon the flange 25 to swing vertically'about a trans- What is claimedisf vj 1. In a firebox having a firing opening in an upstanding wall thereof,a stoker comprising a fuel feed casing having a fuel discharge openingin substantial register with said firing opening, said casing. having atransversely extending arcuate-shaped depression formed in its lowerinverse axis, as for instance, on the rod 8 whichfi' ior r e a j ent i sischar op a is journalled in the bearings 9.,

The mechanism for operating the door 39 com prises a hand lever 40pivoted loosely on the pin 4| which projects laterally from a side ofthe casing 20 adjacent the flange 25 and in a plane below the axis aboutwhich the door 39 swings. A link 42 is pivoted loosely at one end on apin 43 intermediate the pivoted endand the free end of the hand lever 40and pivoted loosely on a pin 44 in the lug 45 of the 'door .39. Thus byraising.

the hand lever 40, the door 39 is opened through the medium of the link42.

. In order to retain the door in any one of a number'of positions, aquadrant-shaped rack 46 is formed with the casing 20 and is providedwith a plurality of notches 41. A rod 48 is movably mounted with thehand lever 40 and its one end is pressed against the curved surface ofthe rack 46 by the spring 49 and as the hand lever 40 is raised, the rod48 will engage one of the notches 41 thereby retaining the hand lever 40and door 39in position. To release the door 39, the rod 48 is removedfromengagement with the notch 41 by pressure of the hand on theextension 50 V of the rod 48.

tributorhead 3| which is providedwith a complementary arcuate-shapedsurface 53.

I The distributor head is held in position at one end by the wall of thecasing 20 bordering the opening 5| and at its other end by the lug 54which is received in the opening 55 in the thickened wall portion 56 ofthe casing 20. The distributor head 3| "is adjutable about itstransverse axis and. may be securedin any one of a number of positionsby the bolt 5'! which passes through the arcuate slot 58 in the flange59 of the distributor head and into the lug Won the casing 20. The lug60 shown in section in Fig. 6 corresponds in shape to the flange 59which appears in. Fig. 1; v

The distributor head 3|is provided with a flat concave rear wall 6|conforming to the shape of the wall of the casing 20 andia flat concavetop wall 62 conforming with the shape of the wall of the mouth portionof the casing 20. The distributor head 3| is divided internally intochambers 63, 64 and 65, and openings 66, Gland 68 in the end wall of thehead communicate respectively with the chambers 63, and 65 for theintroduction of pressure fluid. That portion of the arcuate-shaped wall53 of the distributor head that faces the firebox is provided with aplurality of jet openings 69. communicating with the chambers 63, 64 and65. A plurality of supply pipes 10 conduct. pressure fluid to thechambers 63, B4 and 65 and may be provided with valves (not shown) forregulating the supply of pressure fluid to the chambers.

This application is a division of application Serial No. 663,131, filedMarch 28, 1933, now

Patent No. 2,081,113, granted May 18, 1937..

pressure fluid distributor head seated in said depression, said headhaving a complementary curved surface permitting said head to be rotatedin said depression about a transverse axis.

2. In a firebox having a firing opening in an upstanding wall thereof, astoker comprising a fuel feed casing having a fuel discharge opening insubstantial register with said firing opening, said casing having atransversely extending arcuate-shaped depression formed in its lowerinterior surface adjacent its discharge opening, a

pressure fluid distributor head seated in said depression, said headhaving a complementary curved surface-permitting said head to be rotatedin said depression about a transverse axis and means for securing saidhead in any one of a number of positions.

3. In a firebox having a firing opening in an upstanding Wall thereof, astoker comprisinga fuel feed casing having a fuel discharge opening insubstantial register with said firing opening,

said'casing having a transversely extending arcu ate-shaped depressionformed in its lower interior surface adjacent its discharge opening, oneside of said casing having an opening extending therethrough adjacentsaid depression, a pressure fluid head seated in said depression andinsertable in position through the last named opening, said pressurefluid head having a complementary" curved surface permitting said headto be rotated in said depression about a transverse axis.

4. In a firebox having a firing opening in an upstanding wall thereof, astoker comprising a fuel feed casing having a fuel discharge openinginsubstantial register 'with said firing opening, said casing having atransversely extending arcuate-shaped depression formed in its lowerinterior surface adjacent its discharge opening, one side-of said casinghaving an opening extending therethrough adjacent said depression, apressure fluid head seated in said depression and insertable 7 inposition through the last named opening, said pressure fluid head havinga complementary curved surface permitting said head to be rotated insaid depression about a transverse axis and means for securing said headin any one of a number of positions.

5. Ina firebox having a firing opening in an upstanding wall thereof, astoker comprising a,

fuel'feed casing having a fuel discharge opening in substantial registerwith saidfiring opening, said casing having a transversely extendingarcuate-shaped depression formed in its lower interior surface adjacentits discharge opening, one side of said casing having an openingextending therethrough adjacent said depression, a pressure fluid headseated in said depression and insertable through the last named opening,said pressure fluid head having a complementary curved surfacepermitting said'head to be rotatedin said depression about a transverse.axis, a flange formed with one. end of said head and fitting againstthe exterior ofsaidcasing, said flange having a'slot formed therein, andmeans passing through said slot for securing said head to said casing inany one of a number of positions.

.6; In afireboxhaving a firing opening man upstanding wall thereof, astoker comprising a fuel feed casing having a discharge opening insubstantial register with said firing opening, a pressure fluiddistributor head lying transversely within said casing across its lowerwall and adjacent its discharge opening, a side wall of said casingadjacent its discharge opening having an opening extendingtheretlirough' permitting insertion of said head in operative position,said head being divided internally into a plurality of chambers, andbeing provided in its end wall ad- J'acent the opening in said casingside wall with an opening into each of said chambers for theintroduction of pressure fluid, the side of said head facing the fireboxhaving jet apertures communicating with said chambers for the dischargeof pressure fluid.

7. In a firebox having a firing opening in an upstanding wall thereof, astoker comprising a fuel feed casing having a discharge opening insubstantial register with said firing opening, said casing having atransversely extending arcuateshaped depression formed in its lowerinterior surface adjacent its discharge opening, a pressure fluiddistributor head seated in said depression, a side wall of said casinghaving an opening extending therethrough adjacent its discharge openingpermitting insertion of said head in operative position, said head beingdivided internally into a pluralty of chambers and being provided in itsend wall adjacent the opening in said casing side wall with an openinginto each of said chambers for the introduction of pressure fluid, theside of said head facing the firebox having jet apertures communicatingwith said chambers for the discharge of pressure fluid.

8. As an article of manufacture a pressure fluid distributor headcomprising a pair of end walls, a plurality of side walls includedbetween said end walls, one of said side walls having an arcuate surfacecurving radially about an axis extending from one of said end walls tothe other of said end walls, and an adjacent side wall having a concavesurface curving radially about an axis extending perpendicularly to saidfirst-named axis, said head being divided internally into a plurality ofchambers, one of said end walls being provided with a plurality ofopenings therethrough, each opening communicating with a respectivechamber, and a plurality of jet openings in said arcuate side walladjacent its intersection with one of the other of said side wallscommunicating with said chambers.

9. As an article of manufacture a pressure fluid distributor headcomprising a pair of end walls, a plurality of side walls includedbetween said end walls including a side wall having an arcuate surfacecurving radially about an axis extending from one of said end walls tothe other of said end walls, and a pair of side walls each having aconcave surface curving radially about an axis extending perpendicularlyto said first-named axis, said head being divided internally into threechambers, one of said end walls being provided with openings, eachcommunicating with a respective chamber and a plurality of aligned jetopenings in said arcuate side wall adjacent its intersection with one ofsaid concave side walls, the centrally located jet openingscommunicating with one of said chambers and the jet openings at eitherside of the centrally located jet openings communicating with arespective chamber.

10. As an article of manufacture a pressure fluid distributor headcomprising a pair of end walls, a plurality of side walls includedbetween said end walls, one of said end walls extending beyond said sidewalls forming a flange, one of said side walls having an arcuate surfacecurving radially about an axis extending from one of said end walls tothe other of said end walls, and the other of said side walls eachhaving a concave surface curving radially about an axis extendingperpendicularly to said first-named axis, said head being dividedinternally into a plurality of chambers, a plurality of openings in saidflanged end wall, each opening communicating with a respective chamber,said arcuate side wall having a plurality of jet openings therethrouglradjacent its intersection with one of said concave side wallscommunicating with said chambers, and said flange having an arcuateslot.

BERNADINE ANDERSON. Ewecutria: of the Estateof Howard P. Anderson,

Deceased.

